Java 中 BreakIterator 跟随()方法，示例

原文:https://www . geesforgeks . org/breakiterator-following-in-method-in-Java-with-examples/

java.text.BreakIterator 类的以下()方法用于返回文本行中指定偏移量之后出现的第一个边界的索引。它提供下一个边界的第一个字符的偏移量，下一个边界跟随传递的偏移量的边界。 语法:

public abstract int following(int offset)

参数:该方法将偏移作为参数，必须找到第一个参数之后的所需边界。 返回值:此方法提供指定偏移量后的第一个边界。 异常:如果偏移量小于第一个边界且大于最后一个边界，该方法抛出IllegalArgumentException。 以下是举例说明以下()方法: 例 1:

Java 语言(一种计算机语言，尤用于创建网站)

// Java program to demonstrate following() method

import java.text.*;
import java.util.*;
import java.io.*;

public class GFG {
    public static void main(String[] argv)
    {
        try {
            int current = 0;

            // creating and initializing BreakIterator
            BreakIterator wb
                = BreakIterator.getWordInstance();

            // setting text for BreakIterator
            wb.setText("Code  Geeks");

            // getting the text boundary
            current = wb.following(0);

            // display the result
            System.out.println(
                "first boundary for offset 0 : "
                + current);

            // getting the text boundary
            current = wb.following(4);

            // display the result
            System.out.println(
                "\nfirst boundary for offset 4 : "
                + current);

            // getting the text boundary
            current = wb.following(8);

            // display the result
            System.out.println(
                "\nfirst boundary for offset 8 : "
                + current);
        }

        catch (IllegalArgumentException e) {

            System.out.println("Exception thrown : " + e);
        }
    }
}

Output: 

first boundary for offset 0 : 4

first boundary for offset 4 : 6

first boundary for offset 8 : 11

例 2:

Java 语言(一种计算机语言，尤用于创建网站)

// Java program to demonstrate following() method

import java.text.*;
import java.util.*;
import java.io.*;

public class GFG {
    public static void main(String[] argv)
    {
        try {
            int current = 0;

            // creating and initializing BreakIterator
            BreakIterator wb
                = BreakIterator.getWordInstance();

            // setting text for BreakIterator
            wb.setText("Code  Geeks");

            // getting the text boundary
            current = wb.following(0);

            // display the result
            System.out.println(
                "first boundary for offset 0 : "
                + current);

            // getting the text boundary
            current = wb.following(4);

            // display the result
            System.out.println(
                "\nfirst boundary for offset 4 : "
                + current);

            // getting the text boundary
            current = wb.following(-8);

            // display the result
            System.out.println(
                "\nfirst boundary for offset 8 : "
                + current);
        }

        catch (IllegalArgumentException e) {
            System.out.println(
                "\noffset is less than"
                + " the first boundary");
            System.out.println("Exception thrown : " + e);
        }
    }
}

Output: 

first boundary for offset 0 : 4

first boundary for offset 4 : 6

offset is less than the first boundary
Exception thrown : java.lang.IllegalArgumentException: offset out of bounds

参考:https://docs . Oracle . com/javase/9/docs/API/Java/text/breakiterator . html # following-int-

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